Add 72/3 and 42/20
1st number: 24 0/3, 2nd number: 2 2/20
72/3 + 42/20 is 261/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
72/3 = 72 × 20/3 × 20 = 1440/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
42/20 = 42 × 3/20 × 3 = 126/60 - Add the two like fractions:
1440/60 + 126/60 = 1440 + 126/60 = 1566/60 - 1566/60 simplified gives 261/10
- So, 72/3 + 42/20 = 261/10
In mixed form: 261/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/3+84/20 72/6+42/20 72/3+42/40 72/9+42/20 72/3+42/60 72/15+42/20 72/21+42/20